I’m being inundated by spam for the last week or so. Akismet does a great job, but there are more coming in than I can easily skim for false positives. (Who has time to read 600 spams a day?) So if you’ve left a comment and it hasn’t appeared, it isn’t you. I’ve never intentionally banned a comment not trying to sell me something or alter my (non-existent) anatomy.
If your comment disappears, please repost it, and I do apologize.